A screening device for magnetic material processing

Abstract

This utility model discloses a screening device for magnetic material processing, relating to the field of magnetic material processing. The device includes a frame, a housing mounted on top of the frame, mounting plates on both sides of the top of the housing, and a top frame between the two mounting plates. The device comprises a diversion pipe, a water hose, a high-pressure nozzle, a scraper, a pressure plate, a pressure rod, a spring, a lifting plate, and a threaded shaft. When cleaning residues adhering to the surface of the magnetic separator needs to be done, the operator can start an external high-pressure water pump. The high-pressure water pump draws external water, which is delivered to the diversion pipe via the water hose and then sprayed at an angle onto the outer wall of the magnetic separator through the high-pressure nozzle for initial rinsing. Simultaneously, the operator can rotate the threaded shaft, causing the pressure plate to move downwards, which in turn moves the pressure rod downwards, and then the scraper downwards. Once the scraper is in contact with the outer wall of the magnetic separator, the threaded shaft stops rotating. As the magnetic separator continues to rotate, the outer wall of the magnetic separator can be cleaned.

Description

Technical Field

[0001] This utility model relates to the field of magnetic material processing, specifically a screening device for magnetic material processing. Background Technology

[0002] Currently, screening devices can be understood as material separation / sorting equipment in a broad sense (i.e., devices that extract or separate target components from mixtures). In order to distinguish between magnetic and non-magnetic minerals, magnetic separators are needed to screen magnetic and non-magnetic materials. The most commonly used type is the permanent magnet drum magnetic separator. Permanent magnet drum magnetic separators are suitable for metallurgical, mining, mineral processing, and other enterprises, institutions, and individual users. Magnetic separators separate materials by magnetic differences (such as removing raw material impurities and classifying products with different magnetic properties). Essentially, they "screen" out the target magnetic components.

[0003] According to Chinese Patent No. CN220919552U, a permanent magnet drum-type magnetic separator is disclosed. In use, the cleaning brush can be installed at the bottom of the crossbar as needed. Then, by rotating the screw, the trapezoidal block will no longer squeeze the top rod. Then, the connecting rod and the limiting block will be reset by the movable spring, so that the limiting block can move out of the groove of the crossbar. The cleaning brush can be installed at the bottom of the crossbar through the limiting block. When the drum body moves, the cleaning brush can clean the drum body, which is convenient for users to quickly clean the impurities on the surface of the drum body.

[0004] Regarding the aforementioned patent content, a structure such as a cleaning brush is provided to clean the outer wall of the drum. However, the drum rotates continuously during the screening process, and the cleaning brush is always in contact with its outer wall, which will generate continuous friction. Long-term friction will cause the surface of the scraper to wear out quickly, shortening its service life. It will also cause the adhesion between the cleaning brush and the magnetic separator to decrease, making it unable to effectively contact the drum wall during subsequent cleaning, affecting the cleaning effect. At the same time, it is necessary to frequently replace the worn cleaning brush, thereby increasing maintenance costs. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a screening device for processing magnetic materials, so as to solve the technical problem that the continuous contact between the cleaning brush and the outer wall of the roller will accelerate its wear and reduce its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for processing magnetic materials, comprising a frame, a housing mounted on the top of the frame, mounting plates mounted on both sides of the top of the housing, a top frame mounted between two mounting plates, connecting plates fixed on both sides of the outer surface of the top frame, a diversion pipe mounted between two connecting plates, multiple high-pressure nozzles mounted at the bottom of the diversion pipe, and a water supply hose connected to one end of the diversion pipe, a lifting plate disposed below the top frame, a pressure rod penetrating the top of the lifting plate fixed on the top of the lifting plate, and a slot formed at the bottom of the lifting plate, a pressure plate mounted on the top of the pressure rod by fastening bolts, multiple mounting slots formed at the bottom of the pressure plate and the top of the top frame, and a spring installed between every two mounting slots, an insert plate inserted into the slot, and a scraper mounted on the bottom of the insert plate, a locking bolt extending into the insert plate threadedly connected to the lifting plate, a support plate fixed to the top of the top frame, a threaded shaft threadedly connected to the support plate, and the bottom end of the threaded shaft connected to the top of the pressure plate by a bearing.

[0007] By adopting the above technical solution, when the scraper needs to be replaced, the worker can unscrew the locking bolt and then pull the scraper down to remove the insert plate from the slot, thus removing the scraper for replacement.

[0008] Furthermore, a hollow shaft is connected to one of the mounting plates via a bearing, and a drive shaft is connected to the other mounting plate via a bearing. Multiple connecting rods are installed on the outer walls of both the hollow shaft and the drive shaft, and magnetic separators are installed at the ends of the connecting rods.

[0009] By adopting the above technical solution, when the drive shaft rotates, it can drive the connecting rod to rotate, and the rotation of the connecting rod will drive the magnetic separator to rotate.

[0010] Furthermore, a drive motor is installed on one side of the top of the frame, and the output end of the drive motor is connected to the drive shaft.

[0011] By adopting the above technical solution, when the magnetic separator needs to rotate, the drive motor can be started, and the drive motor can drive the drive shaft to rotate.

[0012] Furthermore, a side frame is fixed to one side of one of the mounting plates, and a fixed shaft penetrating the hollow shaft is fixed to one side of the side frame. One end of the fixed shaft is connected to the drive shaft through a bearing, and a connecting bracket is installed at the bottom of the fixed shaft.

[0013] By adopting the above technical solution, the hollow shaft is designed to facilitate the passage of the fixed shaft, thus ensuring that the fixed shaft does not obstruct the rotation of the hollow shaft.

[0014] Furthermore, a permanent magnet is installed at the bottom of the connecting frame, and a gap is left between the permanent magnet and the inner wall of the magnetic separator.

[0015] By adopting the above technical solution, continuous friction between the permanent magnet and the magnetic separator is avoided, thereby extending the service life of the permanent magnet.

[0016] Furthermore, a material conveying channel is provided inside the lower part of the housing, and a first material guiding channel and a second material guiding channel are respectively provided near the magnetic separator.

[0017] By adopting the above technical solution, the material can flow in the conveying channel. Magnetic materials are attracted by the magnetic separator and enter the second guiding channel, while non-magnetic materials enter the first guiding channel.

[0018] Furthermore, the interior of the housing is provided with a first collection trough and a second collection trough. The bottom of the first collection trough is connected to a first discharge pipe, and the first collection trough is connected to a first guide channel.

[0019] By adopting the above technical solution, the non-magnetic material enters the first collection tank and falls into the corresponding collection box through the first discharge pipe.

[0020] Furthermore, a second discharge pipe is connected to the bottom of the second collection tank, and the second collection tank is connected to the second guide channel.

[0021] By adopting the above technical solution, when the magnetic material falls into the second collection tank, it will be discharged through the second discharge pipe and fall into the corresponding collection box.

[0022] Furthermore, a feed inlet is provided at a position away from the magnetic separator in the housing, and the feed inlet is connected to the conveying channel, which is connected to the first guide channel and the second guide channel respectively.

[0023] By adopting the above technical solution, the material (slurry) is added into the feed inlet and then enters the conveying channel.

[0024] Furthermore, multiple high-pressure nozzles are equidistantly distributed at the bottom of the diverter pipe, and the high-pressure nozzles are inclined toward the magnetic separator.

[0025] By adopting the above technical solution, water can enter the high-pressure nozzle through the diversion pipe and be sprayed out through the high-pressure nozzle to rinse the outer wall of the magnetic separator.

[0026] In summary, the present invention has the following main advantages: 1. This utility model, equipped with a diversion pipe, water delivery hose, high-pressure nozzle, scraper, pressure plate, pressure rod, spring, lifting plate, and threaded shaft, allows for the cleaning of residues adhering to the surface of the magnetic separator. When this is necessary, the operator can activate an external high-pressure water pump. The pump draws water, which is then delivered through the water delivery hose to the diversion pipe and sprayed at an angle onto the outer wall of the magnetic separator by the high-pressure nozzle for initial rinsing. Simultaneously, the operator can rotate the threaded shaft, causing the pressure plate to move downwards. The pressure plate then moves the pressure rod downwards, which in turn moves the scraper downwards, compressing the spring. Once the scraper blade is in contact with the outer wall of the magnetic separator, the threaded shaft stops rotating. As the magnetic separator continues to rotate, the outer wall of the magnetic separator is cleaned, preventing residue from adhering to the outer wall and affecting its performance. After cleaning, the pressure plate is released, the spring is stretched, and the pressure plate is pushed up, which in turn moves the scraper blade upward, preventing it from contacting the outer wall of the magnetic separator. This avoids the scraper blade constantly rubbing against the outer wall of the magnetic separator during operation, thus slowing down the wear rate of the scraper blade, extending its service life, and reducing the frequency of scraper blade replacement. 2. This utility model is equipped with an insert plate, a slot, and a locking bolt. When the scraper needs to be replaced, the operator can rotate the locking bolt to unscrew it. At this time, the insert plate is no longer locked and limited. Then the operator can pull down the scraper to remove the insert plate from the slot, thus removing the scraper for replacement and avoiding the continued use of a severely worn scraper. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall side structure of this utility model; Figure 3 This is a schematic diagram of the overall side sectional structure of this utility model; Figure 4 This is a bottom view of the magnetic separator structure of this utility model; Figure 5 This is a bottom view schematic diagram of the pressure plate structure of this utility model; Figure 6 This is a schematic diagram of the permanent magnet structure of this utility model; Figure 7 This is a schematic diagram of the front section structure of the magnetic separator of this utility model; Figure 8 For the present utility model Figure 3 Enlarged structural diagram at point A; Figure 9 For the present utility model Figure 5 A magnified structural diagram at point B in the middle.

[0028] In the diagram: 1. Frame; 2. Housing; 3. Mounting plate; 4. Feed inlet; 5. Conveying channel; 6. First guide channel; 7. First collection trough; 8. First discharge pipe; 9. Second guide channel; 10. Second collection trough; 11. Second discharge pipe; 12. Magnetic separator; 13. Drain valve; 14. Fixed shaft; 15. Connecting frame; 16. Permanent magnet; 17. Drive motor; 18. Drive shaft; 19. Connecting rod; 20. Hollow shaft; 21. Locking bolt; 22. Side frame; 23. Scraper; 24. Top frame; 25. Connecting plate; 26. Diverter pipe; 27. Water supply hose; 28. High-pressure nozzle; 29. ​​Pressure plate; 30. Pressure rod; 31. Spring; 32. Mounting groove; 33. Lifting plate; 34. Slot; 35. Insert plate; 36. Support plate; 37. Threaded shaft. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of this utility model will be described below based on its overall structure.

[0031] Example 1: A screening device for processing magnetic materials, such as Figures 1-9As shown, the device includes a frame 1, a housing 2 mounted on top of the frame 1, mounting plates 3 on both sides of the top of the housing 2, a top frame 24 between the two mounting plates 3, and connecting plates 25 fixed to both sides of the outer surface of the top frame 24. A diversion pipe 26 is installed between the two connecting plates 25, and multiple high-pressure nozzles 28 are installed at the bottom of the diversion pipe 26. One end of the diversion pipe 26 is connected to a water delivery hose 27, and one end of the water delivery hose 27 is connected to the outlet of an external high-pressure water pump via a flange. Multiple high-pressure nozzles 28 are equidistantly distributed at the bottom of the diversion pipe 26. A lifting plate 33 is installed below the top frame 24, and a pressure rod 30 penetrating the top frame 24 is fixed to the top of the lifting plate 33. A slot 34 is provided at the bottom of the lifting plate 33. A pressure plate 29 is installed at the top of the pressure rod 30 by fastening bolts. Multiple mounting slots 32 are provided at the bottom of the pressure plate 29 and the top of the top frame 24, and a spring 31 is installed between every two mounting slots 32. An insert plate 35 is inserted into the slot 34. A scraper 23 is installed at the bottom of the insert plate 35. A locking bolt 21 extending into the insert plate 35 is threaded onto the lifting plate 33. The insert plate 35 is adapted to the slot 34. The scraper 23 and the insert plate 35 are detachably connected to the lifting plate 33 via the locking bolt 21. The scraper 23 is made of rubber or polyurethane (hardness ≤ Shore A80). When the scraper 23 needs to be replaced, the operator can unscrew the locking bolt 21 and then pull the scraper 23 downwards, causing the insert plate 35 to move out of the slot 34. The scraper 23 can then be removed for replacement. The length of the scraper 23 is the same as the length of the magnetic separator 12. The scraper 23 is located above the magnetic separator 12. The top of the top frame 24 is fixed with a support plate 36, and a threaded shaft 37 is threadedly connected to the support plate 36. The bottom end of the threaded shaft 37 is connected to the top of the pressure plate 29 through a bearing. A knob is installed at the top of the threaded shaft 37, which allows the operator to rotate the threaded shaft 37 by turning the knob, so that the threaded shaft 37 can move and drive the pressure plate 29 to move.

[0032] Specifically, a hollow shaft 20 is connected to one mounting plate 3 via bearings, and a drive shaft 18 is connected to another mounting plate 3 via bearings. Multiple connecting rods 19 are installed on the outer walls of both the hollow shaft 20 and the drive shaft 18, and magnetic separators 12 are installed at the ends of the connecting rods 19. When the drive shaft 18 rotates, it can drive the connecting rods 19 to rotate, and the rotation of the connecting rods 19 can drive the magnetic separators 12 to rotate. A drive motor 17 is installed on one side of the top of the frame 1, and the output end of the drive motor 17 is connected to the drive shaft 18. When it is necessary to rotate the magnetic separators 12, the drive motor 17 can be started. The operation of the drive motor 17 can drive the drive shaft 18 to rotate. The drive motor 17 and the external high-pressure water pump are electrically connected to the external control panel so that the drive motor 17 and the external high-pressure water pump can be controlled through the external control panel.

[0033] See Figures 1-7A side bracket 22 is fixed to one side of an installation plate 3. A fixed shaft 14, which passes through a hollow shaft 20, is fixed to one side of the side bracket 22. One end of the fixed shaft 14 is connected to a drive shaft 18 via a bearing. A connecting bracket 15 is installed at the bottom of the fixed shaft 14. The hollow shaft 20 is designed to facilitate the passage of the fixed shaft 14, thus ensuring that the fixed shaft 14 does not obstruct the rotation of the hollow shaft 20. A permanent magnet 16 is installed at the bottom of the connecting bracket 15. A gap is left between the permanent magnet 16 and the inner wall of the magnetic separator 12 to prevent continuous friction between the permanent magnet 16 and the magnetic separator 12, thereby extending the service life of the permanent magnet 16. A material conveying channel 5 is opened at the bottom of the interior of the housing 2. The housing 2 is close to the magnetic separator. The first material guide channel 6 and the second material guide channel 9 are respectively opened at the position of the cylinder 12 so that the material can flow in the conveying channel 5. Magnetic materials are attracted by the magnetic separator 12 and enter the second material guide channel 9, while non-magnetic materials enter the first material guide channel 6. The housing 2 is provided with a feed inlet 4 at a position away from the magnetic separator 12. The feed inlet 4 is connected to the conveying channel 5. The conveying channel 5 is connected to the first material guide channel 6 and the second material guide channel 9 so that the material (slurry) is added into the feed inlet 4 and the material enters the conveying channel 5. A drain valve 13 is also connected to one side of the housing 2 and is connected to the conveying channel 5.

[0034] Example 2: Based on the above embodiment one, the following structure will be set up to facilitate the collection of magnetically separated materials and non-magnetic materials.

[0035] Specifically, the shell 2 is also provided with a first collection tank 7 and a second collection tank 10. The bottom of the first collection tank 7 is connected to a first discharge pipe 8. The first collection tank 7 is connected to a first guide channel 6. Non-magnetic materials enter the first collection tank 7 and fall into the corresponding collection box through the first discharge pipe 8. The bottom of the second collection tank 10 is connected to a second discharge pipe 11. The second collection tank 10 is connected to a second guide channel 9. When magnetic materials fall into the second collection tank 10, they will be discharged through the second discharge pipe 11 and fall into the corresponding collection box. The staff needs to place a collection box under the first discharge pipe 8 and the second discharge pipe 11 to collect non-magnetic and magnetic materials respectively.

[0036] Example 3: Based on the above embodiment 1, in order to enable water to be sprayed onto the magnetic separator 12, the high-pressure nozzle 28 will be configured as follows.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 7The high-pressure nozzle 28 is inclined toward the magnetic separator 12 so that water can enter the high-pressure nozzle 28 through the diversion pipe 26 and be sprayed out through the high-pressure nozzle 28 to rinse the outer wall of the magnetic separator 12.

[0038] The working principle of this utility model is as follows: First, before use, the operator can turn on the power supply, then place the two collection boxes directly below the first discharge pipe 8 and the second discharge pipe 11, and then connect the water supply hose 27 to the outlet of the external high-pressure water pump. The external mineral slurry material enters the conveying channel 5 from the inlet 4. At the same time, the drive motor 17 is started, and the drive motor 17 drives the drive shaft 18 to rotate, which makes the magnetic separator 12 rotate synchronously through the connecting rod 19. The permanent magnet 16 at the bottom of the fixed shaft 14 generates a magnetic field. The magnetic material is attracted by the outer wall of the magnetic separator 12 and rotates with it. The non-magnetic material enters the first guide channel 6 along the conveying channel 5. The non-magnetic material enters the first collection tank 7 through the first guide channel 6, is discharged through the first discharge pipe 8 and falls into the corresponding collection box. The magnetic material rotates with the magnetic separator 12 until it leaves the magnetic field area, then falls into the second guide channel 9, and finally is discharged through the second collection tank 10 and the second discharge pipe 11 and falls into the corresponding collection box. In this way, the magnetic material can be screened. When the outer wall of the magnetic separator 12 needs to be cleaned, the external high-pressure water pump supplies water to the diversion pipe 26 through the water supply hose 27, and sprays it onto the outer wall of the magnetic separator 12 through the high-pressure nozzle 28; at the same time, the threaded shaft 37 is rotated to push the pressure plate 29 and the pressure rod 30 to move down, so that the lifting plate 33 drives the scraper 23 to fit against the magnetic separator 12, and completes the mechanical cleaning in conjunction with the rotation of the magnetic separator 12. After the cleaning is completed, the external high-pressure water pump is turned off, and the threaded shaft 37 is rotated in the opposite direction, so that the threaded shaft 37 drives the pressure plate 29 to move up and reset, and then drives the scraper 23 to move up and reset, so that the scraper 23 is no longer in contact with the outer wall of the magnetic separator 12. When the scraper 23 needs to be replaced, the locking bolt 21 is unscrewed and the insert plate 35 is pulled out to complete the replacement of the scraper 23.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A screening device for processing magnetic materials, comprising a frame (1), characterized in that: A housing (2) is mounted on the top of the frame (1). Mounting plates (3) are mounted on both sides of the top of the housing (2). A top frame (24) is mounted between the two mounting plates (3). Connecting plates (25) are fixed on both sides of the outer surface of the top frame (24). A diversion pipe (26) is mounted between the two connecting plates (25). Multiple high-pressure nozzles (28) are mounted on the bottom of the diversion pipe (26). A water delivery hose (27) is connected to one end of the diversion pipe (26). A lifting plate (33) is provided below the top frame (24). A pressure rod (30) that penetrates the top frame (24) is fixed on the top of the lifting plate (33). A slot (34) is provided at the bottom of the lifting plate (33). The top of the pressure rod (30) is fitted with a pressure plate (29) by fastening bolts. The bottom of the pressure plate (29) and the top of the top frame (24) are provided with multiple mounting slots (32), and a spring (31) is installed between every two mounting slots (32). A plate (35) is inserted into the slot (34), and a scraper (23) is installed at the bottom of the plate (35). A locking bolt (21) extending into the plate (35) is threaded onto the lifting plate (33). A support plate (36) is fixed to the top of the top frame (24), and a threaded shaft (37) is threaded onto the support plate (36). The bottom end of the threaded shaft (37) is connected to the top of the pressure plate (29) through a bearing.

2. The screening device for processing magnetic materials according to claim 1, characterized in that: A hollow shaft (20) is connected to one of the mounting discs (3) via a bearing, and a drive shaft (18) is connected to the other mounting disc (3) via a bearing. Multiple connecting rods (19) are installed on the outer wall of the hollow shaft (20) and the outer wall of the drive shaft (18), and a magnetic separator (12) is installed at the end of the connecting rod (19).

3. The screening device for processing magnetic materials according to claim 1, characterized in that: A drive motor (17) is installed on one side of the top of the frame (1), and the output end of the drive motor (17) is connected to the drive shaft (18).

4. The screening device for processing magnetic materials according to claim 1, characterized in that: A side bracket (22) is fixed on one side of the mounting plate (3), and a fixed shaft (14) through the hollow shaft (20) is fixed on one side of the side bracket (22). One end of the fixed shaft (14) is connected to the drive shaft (18) through a bearing, and a connecting bracket (15) is installed at the bottom of the fixed shaft (14).

5. A screening device for processing magnetic materials according to claim 4, characterized in that: A permanent magnet (16) is installed at the bottom of the connecting frame (15), and a gap is left between the permanent magnet (16) and the inner wall of the magnetic separator (12).

6. The screening device for processing magnetic materials according to claim 1, characterized in that: The housing (2) has a material conveying channel (5) at the bottom inside, and the housing (2) has a first material guiding channel (6) and a second material guiding channel (9) at the position near the magnetic separator (12).

7. A screening device for processing magnetic materials according to claim 6, characterized in that: The housing (2) is also provided with a first collection groove (7) and a second collection groove (10). The bottom of the first collection groove (7) is connected to a first discharge pipe (8). The first collection groove (7) is connected to the first guide channel (6).

8. A screening device for processing magnetic materials according to claim 7, characterized in that: The bottom of the second collection tank (10) is connected to the second discharge pipe (11), and the second collection tank (10) is connected to the second guide channel (9).

9. A screening device for processing magnetic materials according to claim 6, characterized in that: The housing (2) has a feed inlet (4) located away from the magnetic separator (12). The feed inlet (4) is connected to the conveying channel (5). The conveying channel (5) is connected to the first guide channel (6) and the second guide channel (9) respectively.

10. A screening device for processing magnetic materials according to claim 1, characterized in that: Multiple high-pressure nozzles (28) are equidistantly distributed at the bottom of the diverter pipe (26), and the high-pressure nozzles (28) are inclined toward the magnetic separator (12).

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